Παραπομπή σε μορφή APA (7η εκδ.)

Riahi, H. (1999). Study of the critical points at infinity arising from the failure of the Palais-Smale condition for n-body type problems. American Mathematical Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Riahi, Hansa. Study of the Critical Points at Infinity Arising from the Failure of the Palais-Smale Condition for N-body Type Problems. Providence, R.I.: American Mathematical Society, 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

Riahi, Hansa. Study of the Critical Points at Infinity Arising from the Failure of the Palais-Smale Condition for N-body Type Problems. American Mathematical Society, 1999.